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Hazardous Weather Conditions

Current conditions at

Peoria - General Downing-Peoria International Airport (KPIA)

Lat: 40.67°NLon: 89.68°WElev: 659ft.

Fair

74°F

23°C

Humidity 97%
Wind Speed Calm
Barometer 30.11 in (1019.0 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Last update 29 Jul 1:54 am CDT
Extended Forecast for

Mackinaw IL

Heat Advisory July 29, 12:00pm until July 29, 08:00pm
Click here for hazard details and duration
Heat Advisory

  • Overnight

    Overnight: Patchy fog. Otherwise, mostly clear, with a low around 71. Calm wind.

    Low: 71 °F

    Patchy Fog

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms, mainly before 8am. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 92. Heat index values as high as 105. Light and variable wind becoming south southwest around 6 mph in the morning.

    High: 92 °F

    Chance
    Showers and
    Patchy Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72. Light and variable wind.

    Low: 72 °F

    Slight Chance
    T-storms

  • Wednesday

    Wednesday: A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 87. East northeast wind 3 to 7 mph. Chance of precipitation is 50%.

    High: 87 °F

    Chance
    Showers then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 64. Northeast wind around 8 mph, with gusts as high as 16 mph. Chance of precipitation is 70%. New rainfall amounts between 1 and 2 inches possible.

    Low: 64 °F

    Showers
    Likely

  • Thursday

    Thursday: A 30 percent chance of showers before 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 77. Northeast wind 10 to 14 mph, with gusts as high as 21 mph.

    High: 77 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 58. North northeast wind 8 to 10 mph, with gusts as high as 18 mph.

    Low: 58 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

Detailed Forecast

Overnight
Patchy fog. Otherwise, mostly clear, with a low around 71. Calm wind.
Tuesday
A 30 percent chance of showers and thunderstorms, mainly before 8am. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 92. Heat index values as high as 105. Light and variable wind becoming south southwest around 6 mph in the morning.
Tuesday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72. Light and variable wind.
Wednesday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 87. East northeast wind 3 to 7 mph. Chance of precipitation is 50%.
Wednesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 64. Northeast wind around 8 mph, with gusts as high as 16 mph. Chance of precipitation is 70%. New rainfall amounts between 1 and 2 inches possible.
Thursday
A 30 percent chance of showers before 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 77. Northeast wind 10 to 14 mph, with gusts as high as 21 mph.
Thursday Night
Partly cloudy, with a low around 58. North northeast wind 8 to 10 mph, with gusts as high as 18 mph.
Friday
Sunny, with a high near 78.
Friday Night
Mostly clear, with a low around 56.
Saturday
Sunny, with a high near 78.
Saturday Night
Mostly clear, with a low around 56.
Sunday
Sunny, with a high near 80.
Sunday Night
Partly cloudy, with a low around 61.
Monday
Partly sunny, with a high near 83.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mackinaw IL
 40.54°N 89.36°W (Elev. 650 ft)
Last Update:
1:40 am CDT Jul 29, 2025
Forecast Valid:
2am CDT Jul 29, 2025-6pm CDT Aug 4, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation